Conveyance belt welding method and conveyance belt welding jig

A conveyance belt welding method using a conveyance belt welding apparatus configured to weld a conveyance belt configured to convey a medium, wherein

• the conveyance belt welding apparatus includes:
• a contact part including a contact surface configured to make contact with the conveyance belt,
• a first electrode,
• a second electrode disposed to surround the first electrode in plan view from a first direction toward the conveyance belt,
• a first conductor including a coil and configured to electrically couple a transmission line configured to transmit a high-frequency voltage and the first electrode, and
• a second conductor configured to electrically couple the transmission line and the second electrode, the conveyance belt welding method comprising:
• sandwiching a material with a predetermined electrical conductivity, or a material with a dielectric loss tangent higher than that of the conveyance belt between one end portion and another end portion where the conveyance belt is to be welded;
• and
• welding the conveyance belt by the first electrode and the second electrode by generating electromagnetic waves in accordance with application of a high-frequency voltage.

A conveyance belt welding method using a conveyance belt welding apparatus configured to weld a conveyance belt configured to convey a medium, wherein

• the conveyance belt welding apparatus includes:
• a contact part including a contact surface configured to make contact with the conveyance belt,
• a first electrode,
• a second electrode disposed to surround the first electrode in plan view from a first direction toward the conveyance belt,
• a first conductor including a coil and configured to electrically couple a transmission line configured to transmit a high-frequency voltage and the first electrode, and
• a second conductor configured to electrically couple the transmission line and the second electrode, the conveyance belt welding method comprising:
• adjusting a heating range for the conveyance belt through generation of electromagnetic waves from the first electrode and the second electrode;
• and
• welding the conveyance belt by the first electrode and the second electrode by generating electromagnetic waves.

A conveyance belt welding jig configured to weld a conveyance belt configured to convey a medium, comprising:

• a belt supporting part including a belt support surface configured to support the conveyance belt;
• and
• a positioning part configured to perform positioning of the conveyance belt supported by the belt support surface, wherein
• the positioning part includes:
• a first positioning part configured to be inserted to a first through hole provided at one end portion where the conveyance belt is to be welded, and
• a second positioning part configured to be inserted to a second through hole provided at another end portion where the conveyance belt is to be welded.